дозвон

English translation: autodial, autoredial

Login or register (free and only takes a few minutes) to participate in this question.

You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.

Explanation:If it is about dial-up connection, it may mean "redial". If it concerns cell phones, it can be translated just like "dial". I would assume that that now this word can mean "manage to connect" too. Check these sites, they are in Russian but may be helpful.

Explanation:IMHO
If the network is busy (busy hour scenario), the probability is higher, and vise versa.
You can also use "successful call probability" though the term "successful call" is rather ambiguous, or "network access probability" - this may be applied to all cellular network services, including data services.